kernel/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.h, branch linux-rolling-stableHosts the 0x221E linux distro kernel.https://universe.0xinfinity.dev/distro/kernel/atom?h=linux-rolling-stable2025-11-13T20:37:23Zdrm/amdgpu: Release hive reference properly2025-11-13T20:37:23ZLijo Lazarlijo.lazar@amd.com2025-09-02T06:07:37Zurn:sha1:cfee28ef80e15c6768385dff28b037356a89b871
[ Upstream commit c1456fadce0c99175f97e66c2b982dd051e01aa2 ]
xgmi hive reference is taken on function entry, but not released
correctly for all paths. Use __free() to release reference properly.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Ce Sun <cesun102@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drm/amdgpu: Add xgmi API to set max speed/width2025-06-18T16:19:21ZLijo Lazarlijo.lazar@amd.com2025-06-13T12:31:29Zurn:sha1:9750ad5aee4cf24b03dbd3baf475a0840bc0bcea
Add an API to set the max possible xgmi speed/width.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: Deprecate xgmi_link_speed enum2025-06-18T16:19:21ZLijo Lazarlijo.lazar@amd.com2025-06-13T07:03:20Zurn:sha1:8c9eb6ce5021adab44b4a365f2ba9bbbfd65f5b5
xgmi doesn't have discrete max speeds defined. Speed numbers can be
arbitrary based on SOC. Deprecate the enum.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/pm: Use external link order for xgmi data2025-05-22T16:02:04ZLijo Lazarlijo.lazar@amd.com2025-05-16T14:46:57Zurn:sha1:74956242a0dfe4ef7fef0f9a4e8f7ea7415be97b
xgmi_port_num interface reports external link number for port number. To
be consistent, use the external link number for reporting other XGMI
link data also.
v2: For invalid link number return -EINVAL (Kevin)
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Acked-by: Yang Wang <kevinyang.wang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: Add xgmi speed/width related info2025-02-27T21:50:04ZLijo Lazarlijo.lazar@amd.com2025-02-06T11:54:51Zurn:sha1:485993e2f1a6bf3d1e8fb5a38c82edd3ae697ad9
Add APIs to initialize XGMI speed, width details and get to max
bandwidth supported. It is assumed that a device only supports same
generation of XGMI links with uniform width.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: Move xgmi definitions to xgmi header2025-02-27T21:50:04ZLijo Lazarlijo.lazar@amd.com2025-02-06T10:46:43Zurn:sha1:6f16d101dab5ec6e8fc9567769f73ae8baa3fe38
Move definitions related to xgmi to amdgpu_xgmi header
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: simplify xgmi peer info calls2025-02-25T16:45:12ZJonathan Kimjonathan.kim@amd.com2025-02-10T18:15:48Zurn:sha1:9424a5bf0836347b737ab27da2c22111abf0ede2
Deprecate KFD XGMI peer info calls in favour of calling directly from
simplified XGMI peer info functions.
Signed-off-by: Jonathan Kim <jonathan.kim@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/pm: Get xgmi link status for XGMI_v_6_4_02024-11-20T14:36:48ZAsad Kamalasad.kamal@amd.com2024-11-11T13:16:01Zurn:sha1:466a59abacc6590487faf21bd572d704f7283d47
Get XGMI_v_6_4_0 link status and populate it to metrics v1_7 for
SMU_v_13_0_6
v2: Get link status register value for each soc from separate
function (Lijo)
Signed-off-by: Asad Kamal <asad.kamal@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdkfd: sever xgmi io link if host driver has disable sharing2024-10-24T22:06:34ZJonathan KimJonathan.Kim@amd.com2024-09-20T15:46:05Zurn:sha1:e46738a58f87fc03962ce907f81e69dcd93f88f5
Host drivers can create partial hives per guest by disabling xgmi sharing
between certain peers in the main hive.
Typically, these partial hives are fully connected per guest session.
In the event that the host makes a mistake by adding a non-shared node
to a guest session, have the KFD reflect sharing disabled by severing
the IO link.
Signed-off-by: Jonathan Kim <jonathan.kim@amd.com>
Tested-by: James Yao <yiqing.yao@amd.com>
Reviewed-by: Harish Kasiviswanathan <harish.kasiviswanathan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: Place NPS mode request on unload2024-10-15T15:16:20ZLijo Lazarlijo.lazar@amd.com2024-09-20T07:44:40Zurn:sha1:ee52489d1210dbb894fda71957e1e9832126efda
If a user has requested NPS mode switch, place the request through PSP
during unload of the driver. For devices which are part of a hive, all
requests are placed together. If one of them fails, revert back to the
current NPS mode.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>